CN106153727A - A kind of building grouting plumpness detection device and detection method - Google Patents

A kind of building grouting plumpness detection device and detection method Download PDF

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Publication number
CN106153727A
CN106153727A CN201610692432.2A CN201610692432A CN106153727A CN 106153727 A CN106153727 A CN 106153727A CN 201610692432 A CN201610692432 A CN 201610692432A CN 106153727 A CN106153727 A CN 106153727A
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signal
module
coding
accumulation
detection device
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陈旭
肖必建
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China Construction Seventh Engineering Bureau Shanghai Corp Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04Analysing solids
    • G01N29/045Analysing solids by imparting shocks to the workpiece and detecting the vibrations or the acoustic waves caused by the shocks
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04Analysing solids
    • G01N29/07Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/01Indexing codes associated with the measuring variable
    • G01N2291/011Velocity or travel time
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/023Solids
    • G01N2291/0232Glass, ceramics, concrete or stone
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/028Material parameters
    • G01N2291/0289Internal structure, e.g. defects, grain size, texture

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The invention discloses a kind of building grouting plumpness detection device, described detection device includes signal emission module, signal receiving module, data processor;Described signal emission module includes usb data interface, electricity quantity display module, adjustment switch, coding signal memory module, power module, coding signal memory module, accumulation signal emission switch, signal amplification module, coding signal input interface, super magnetic vibration module, changable type transmitter module.The invention have the advantage that method and the adjacent frequency difference of adjustable accumulation signal formation technology are analyzed method and combine, simple to operate, improve discrimination precision, there is the highest sensitivity, large-sized concrete structure can be carried out on-line real-time measuremen.

Description

A kind of building grouting plumpness detection device and detection method
Technical field
The present invention relates to a kind of construction auxiliary device and construction method, in particular, relate to a kind of building and fill Slurry plumpness detection device and detection method.
Background technology
Current substantial amounts of Prestressed Concrete Bridges is occupied an leading position in Bridges in Our Country construction, is widely used in including On the construction project of the important bridge such as bridge spanning the sea.For Prestressed Concrete Bridges, hole path pressure grouting is the fullest cause pre-should The corrosion of power muscle, it is the very important aspect reducing effective prestress.Full prestress hole path pressure grouting guarantees presstressed reinforcing steel Avoiding the emphasis suffering corrosion always Construction control too early is also difficulties.But it is durable to affect structure for detection and evaluation The hole path pressure grouting compaction rate of property, also lacks systematized, method and technology fast and effectively the most both at home and abroad.
Traditional wall grouting material entity detection generally uses this method of coring to verify the compaction rate of grouting material.Institute Meaning core detection, it is simply that by the method drilled through on the building masonry wall of molding, take off one piece of body of wall, with the naked eye go to check The wall grouting material taken off is the most closely knit.The compaction rate although this method can visually see, but it causes The destruction of body of wall, the weakening to fabric structure plays indelible hidden danger, the body of wall after breakage, and the later stage needs again to repair Multiple, process very complicated, detect by an unaided eye merely or limited, because if naked eyes are cannot if Ding Liang meanwhile Specifically determine and weigh.
Summary of the invention
The present invention is directed to the deficiency of existing product, and a kind of building grouting plumpness detection device is provided.
A kind of building grouting plumpness detection device of the present invention, described detection device includes signal emission module, signal Receiver module, data processor;Described signal emission module includes usb data interface, electricity quantity display module, adjustment switch, compiles Code signal memory module, power module, coding signal memory module, accumulation signal emission switch, signal amplification module, coding letter Number input interface, super magnetic vibration module, changable type transmitter module;Described usb data interface, electricity quantity display module, adjustment are opened Closing and power module connects, described power module and coding signal memory module, signal amplification module connect, and described signal amplifies Module connects with accumulation signal emission switch, coding signal input interface respectively, and described signal amplification module is by super magnetic vibration Module and changable type transmitter module connect, and coding signal is become by described changable type transmitter module the exciting of frequency rule Signal passes to building grouting plumpness detection object, and signal receiving module receives accumulation signal, and data processor is to reception Accumulation signal is analyzed judging slip casting plumpness.
The coding signal that described accumulation signal uses frequency to be 915 ± 13MHZ or 2450 ± 50MHZ.
Described usb data interface is connected by wire and power module, it is achieved power module charging or extension external power supply; Described usb data interface and coding signal memory module connect, and can realize original code signal is stored in coding signal storage mould Block, described coding signal memory module realizes the output of different coding signal by accumulation signal emission switch.
Described super magnetic vibration module uses giant magnetostrictive material to make.
Described accumulation signal emission switch will have code current signal and input super magnetic vibration mould by signal amplification module Block, coding signal is converted to super magnetic mechanical vibration signal by super magnetic vibration module.
The invention also discloses a kind of build grouting plumpness detection device detection method, described detection method include with Lower step;
Step 1, employing signal emission module carry out plumpness detection of being in the milk to building concrete, pass through signal receiving module Obtain accumulation signal, it is carried out the discriminatory analysis of accumulation signal, measured in xoncrete structure by the meansigma methods of signal velocity of wave Portion's defect;
Step 2, according to method once calculate detection accumulation signal velocity of wave meansigma methods, result of calculation can as slip casting satisfy The basis for estimation of full scale Non-Destructive Testing;
C t m = 1 n Σ i = 1 n C t i ;
C t i = 2 L r ′ Δt e ;
Cti=2L 'r×Δf;
In formula: CmFor the meansigma methods of accumulation signal velocity of wave, m/s;
CtiIt is the i-th test accumulation signal value of wave speed, m/s;
L′rFor the distance of signal emission module to signal receiving module, m;
ΔteFor the time difference between signal receiving module incidence Mintrop wave crest and reflection at peak, s;
Δ f is the frequency difference that on amplitude frequency curve, adjacent resonance is peak-to-peak, HZ;
N is the number of times (n >=5) of code test;
Step 3, judgement calculate grouting plumpness defect and defective locations;The knowledge of grouting plumpness defect reflection accumulation signal Should be not substantially equally spaced with resonance peak arrangement, adjacent frequency difference Δ f ∠ Cti/ (2 × L) is foundation;Defective locations should be calculated as follows:
x = 1 2 × Δt f × C t
In formula: x is defective locations to the distance of signal receiving module, m;
ΔtfFor the time difference that signal receiving module incidence Mintrop wave crest is peak-to-peak with flaw echo, s;
CtFor the accumulation signal velocity of wave by grouting plumpness defects detection object.
The invention has the beneficial effects as follows: (1), not be used on body of wall and take off one block of wall grouting material and with the naked eye detect closely knit Degree, this ensure that not being destroyed of building masonry wall, makes whole fabric structure meet design standard, and can accomplish to determine Amount detection.(2), the effective control to signal and hammer vibration energy is achieved by electric current regulation;Signal uses coding techniques to control, Modulation known signal loads on giant magnetostrictive material, it is achieved that to features such as super magnetic mechanical vibration signal frequency, bandwidth, phase places Control.(3), a kind of detection method building grouting plumpness detection device that the present invention proposes is based on adjustable exciting Method and the adjacent frequency difference of signal formation technology are analyzed method and combine, simple to operate, improve discrimination precision, have very High sensitivity, can carry out on-line real-time measuremen to large-sized concrete structure.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the detection device of the present invention;
Fig. 2 is the detection device signal processing and analysis figure of the present invention;
Fig. 3 is the detection device signal processing and analysis figure of the present invention;
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of building grouting plumpness detection device, described detection device includes signal emission module, letter Number receiver module, data processor;Described signal emission module include usb data interface, electricity quantity display module, adjustment switch, Coding signal memory module, power module, coding signal memory module, accumulation signal emission switch, signal amplification module, coding Signal input interface, super magnetic vibration module, changable type transmitter module;Described usb data interface, electricity quantity display module, adjustment Switch and power module connect, and described power module and coding signal memory module, signal amplification module connect, and described signal is put Big module connects with accumulation signal emission switch, coding signal input interface respectively, and described signal amplification module is shaken by super magnetic Dynamic model block and changable type transmitter module connect, and coding signal is become by described changable type transmitter module swashing of frequency rule The signal that shakes passes to building grouting plumpness detection object, and signal receiving module receives accumulation signal, and data processor is to reception Accumulation signal be analyzed judging slip casting plumpness.
The coding signal that described accumulation signal uses frequency to be 915 ± 13MHZ or 2450 ± 50MHZ.
Described usb data interface is connected by wire and power module, it is achieved power module charging or extension external power supply; Described usb data interface and coding signal memory module connect, and can realize original code signal is stored in coding signal storage mould Block, described coding signal memory module realizes the output of different coding signal by accumulation signal emission switch.
Described super magnetic vibration module uses giant magnetostrictive material to make.
Described accumulation signal emission switch will have code current signal and input super magnetic vibration mould by signal amplification module Block, coding signal is converted to super magnetic mechanical vibration signal by super magnetic vibration module.
The invention also discloses a kind of build grouting plumpness detection device detection method, described detection method include with Lower step;
Step 1, employing signal emission module carry out plumpness detection of being in the milk to building concrete, pass through signal receiving module Obtain accumulation signal, it is carried out the discriminatory analysis of accumulation signal, measured in xoncrete structure by the meansigma methods of signal velocity of wave Portion's defect;
Step 2, according to method once calculate detection accumulation signal velocity of wave meansigma methods, result of calculation can as slip casting satisfy The basis for estimation of full scale Non-Destructive Testing;
C t m = 1 n Σ i = 1 n C t i ;
C t i = 2 L r ′ Δt e ;
Cti=2L 'r×Δf;
In formula: CtmFor the meansigma methods of accumulation signal velocity of wave, m/s;
CtiIt is the i-th test accumulation signal value of wave speed, m/s;
L′rFor the distance of signal emission module to signal receiving module, m;
ΔteFor the time difference between signal receiving module incidence Mintrop wave crest and reflection at peak, s;
Δ f is the frequency difference that on amplitude frequency curve, adjacent resonance is peak-to-peak, HZ;
N is the number of times (n >=5) of code test;
Step 3, judgement calculate grouting plumpness defect and defective locations;The knowledge of grouting plumpness defect reflection accumulation signal Should be not substantially equally spaced with resonance peak arrangement, adjacent frequency difference Δ f ∠ Cti/ (2 × L) is foundation;Defective locations should be calculated as follows:
x = 1 2 × Δt f × C t
In formula: x is defective locations to the distance of signal receiving module, m;
ΔtfFor the time difference that signal receiving module incidence Mintrop wave crest is peak-to-peak with flaw echo, s;
CtFor the accumulation signal velocity of wave by grouting plumpness defects detection object.
Detection signal waveform has a following spectrum signature as shown in Figure 2,3: single-frequency vibrational waveform, corresponding frequency spectrum letter Number is single;The medium of Vibration propagation is complicated, and corresponding frequency spectrum is also the most complicated.According to this principle, when building grouting is the fullest or Completely during blank pipe, the wave-type vibration obtained is single, and frequency spectrum is distributed in the most unimodal or asymmetric bimodal morphology, or visible relatively Weak resonance peak, before its adjacent frequency difference without or have more weak defect scattering;When existing defects, frequency spectrum is asymmetric multimodal form, Its frequency difference being connected involves multiply-scattered wave in significantly scattering.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology necks Territory, is the most in like manner included in the scope of patent protection of the present invention.

Claims (6)

1. a building grouting plumpness detection device, is characterized in that, described detection device includes that signal emission module, signal connect Receive module, data processor;Described signal emission module includes usb data interface, electricity quantity display module, adjustment switch, coding Signal memory module, power module, coding signal memory module, accumulation signal emission switch, signal amplification module, coding signal Input interface, super magnetic vibration module, changable type transmitter module;Described usb data interface, electricity quantity display module, adjustment switch Connecting with power module, described power module and coding signal memory module, signal amplification module connect, and described signal amplifies mould Block connects with accumulation signal emission switch, coding signal input interface respectively, and described signal amplification module is by super magnetic vibration mould Block and changable type transmitter module connect, and coding signal is become by described changable type transmitter module has the exciting of frequency rule to believe Number passing to building grouting plumpness detection object, signal receiving module receives accumulation signal, and reception is swashed by data processor The signal that shakes is analyzed judging slip casting plumpness.
A kind of detection device building grouting plumpness the most according to claim 1, is characterized in that, described accumulation signal is adopted With the coding signal that frequency is 915 ± 13MHZ or 2450 ± 50MHZ.
A kind of detection device building grouting plumpness the most according to claim 1, is characterized in that, described usb data connects Mouth is connected by wire and power module, it is achieved power module charging or extension external power supply;Described usb data interface and coding Signal memory module connects, and can realize original code signal is stored in coding signal memory module, described coding signal storage mould Block realizes the output of different coding signal by accumulation signal emission switch.
A kind of detection device building grouting plumpness the most according to claim 1, is characterized in that, described super magnetic vibration mould Block uses giant magnetostrictive material to make.
A kind of detection device building grouting plumpness the most according to claim 1, is characterized in that, described accumulation signal is sent out Penetrating switch and will have code current signal by the signal amplification module super magnetic vibration module of input, coding is believed by super magnetic vibration module Number be converted to super magnetic mechanical vibration signal.
6. building a detection method for grouting plumpness detection device, it is characterized in that, described detection method comprises the following steps;
Step 1, employing signal emission module carry out plumpness detection of being in the milk to building concrete, are obtained by signal receiving module Accumulation signal, carries out the discriminatory analysis of accumulation signal to it, measures xoncrete structure by the meansigma methods of signal velocity of wave internal scarce Fall into;
Step 2, according to method once calculate detection accumulation signal velocity of wave meansigma methods, result of calculation can be as slip casting plumpness The basis for estimation of Non-Destructive Testing;
C t m = 1 n Σ i = 1 n C t i ;
C t i = 2 L r ′ Δt e ;
Cti=2L 'r×Δf;
In formula: CtmFor the meansigma methods of accumulation signal velocity of wave, m/s;
CtiIt is the i-th test accumulation signal value of wave speed, m/s;
L′rFor the distance of signal emission module to signal receiving module, m;
ΔteFor the time difference between signal receiving module incidence Mintrop wave crest and reflection at peak, s;
Δ f is the frequency difference that on amplitude frequency curve, adjacent resonance is peak-to-peak, HZ;
N is the number of times (n >=5) of code test;
Step 3, judgement calculate grouting plumpness defect and defective locations;The identification of grouting plumpness defect reflection accumulation signal should Substantially equally spaced with resonance peak arrangement, adjacent frequency difference Δ f ∠ Cti/ (2 × L) is foundation;Defective locations should be calculated as follows:
x = 1 2 × Δt f × C t
In formula: x is defective locations to the distance of signal receiving module, m;
ΔtfFor the time difference that signal receiving module incidence Mintrop wave crest is peak-to-peak with flaw echo, s;
CtFor the accumulation signal velocity of wave by grouting plumpness defects detection object.
CN201610692432.2A 2016-08-19 2016-08-19 A kind of building grouting plumpness detection device and detection method Pending CN106153727A (en)

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN106645407A (en) * 2016-12-21 2017-05-10 安徽省建筑工程质量监督检测站 Detection method of grouting compactness for assembly-type shear wall pipeline
CN107526099A (en) * 2017-08-25 2017-12-29 武汉市工程科学技术研究院 The super magnetic focus of pseudorandom spread spectrum and source signal method for generation for engineering geophysics
CN107702740A (en) * 2017-08-30 2018-02-16 中交武汉港湾工程设计研究院有限公司 A kind of underwater foundation slip casting full weight monitoring system and method
CN108956962A (en) * 2018-07-27 2018-12-07 宁波联城住工科技有限公司 The evaluating apparatus and method of grouting material plumpness in grout sleeve
CN109470769A (en) * 2018-09-30 2019-03-15 中国建筑科学研究院有限公司 Method and system for detecting grouting fullness of sleeve by ultrasonic reflection method
CN110455917A (en) * 2019-08-22 2019-11-15 福建博海工程技术有限公司 A kind of repairing concrete crack quality determining method
CN115266937A (en) * 2022-08-31 2022-11-01 中建五局第三建设有限公司 Mortar plumpness measuring instrument and method based on ultrasonic imaging

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106645407A (en) * 2016-12-21 2017-05-10 安徽省建筑工程质量监督检测站 Detection method of grouting compactness for assembly-type shear wall pipeline
CN107526099A (en) * 2017-08-25 2017-12-29 武汉市工程科学技术研究院 The super magnetic focus of pseudorandom spread spectrum and source signal method for generation for engineering geophysics
CN107702740A (en) * 2017-08-30 2018-02-16 中交武汉港湾工程设计研究院有限公司 A kind of underwater foundation slip casting full weight monitoring system and method
CN107702740B (en) * 2017-08-30 2019-12-31 中交武汉港湾工程设计研究院有限公司 Underwater foundation grouting fullness monitoring system and method
CN108956962A (en) * 2018-07-27 2018-12-07 宁波联城住工科技有限公司 The evaluating apparatus and method of grouting material plumpness in grout sleeve
CN109470769A (en) * 2018-09-30 2019-03-15 中国建筑科学研究院有限公司 Method and system for detecting grouting fullness of sleeve by ultrasonic reflection method
CN110455917A (en) * 2019-08-22 2019-11-15 福建博海工程技术有限公司 A kind of repairing concrete crack quality determining method
CN115266937A (en) * 2022-08-31 2022-11-01 中建五局第三建设有限公司 Mortar plumpness measuring instrument and method based on ultrasonic imaging

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